Safety razor



A. B. LAMB.

SAFETY RAZOR. APPLICATION FILED MAR. 25, 1951-.

1,436,451 a Patented Nov. 21, 1922 wiarzll 07772 attoonoq Patented Nov.21,, 1922.

' an'rnun B. LAMB,

OF CAMBRIDGE, MASSACHUSETTS.

SAFETY nezon.

Application filed March 25, 1921. Serial No. 455,443.

To all whom it may concern:

, Be it known that I, ARTHUR B. LAMB, a citizen of the United States,residing at Cambridge, in the county of Middlesex and State ofMassachusetts, tain new and useful-Improvements in Safety Razors, ofwhich the following is a specification. This invention relates to safetyrazors and more particularly to the kind having a two-edged blade whichis adjustable and provided with a clamping handle of the bolt type. l v

Among the objects of this invention is to provide a safety razor whichis easily assembled and disassembled, highly eflicient and of simpleconstruction.

A further object is to provide a simple mechanism for adjusting thewidth of the guard to the varying Widths of the blade, said mechanismbeing separate and distinct from that for clamping the blade inposition.

pass and t erebykeep In safety razors the blades vary not only asregards the keenness of the edge, but, b

some blades are slightly narrower than otners, and thence the protectionafforded by the guard varies. A variation of as much as a halfmillimeter will very considerably affect the likelihood of cuttingoneself.

have devised a very simple and easily constructed device which permitsthe extension or withdrawal of the guard by a millimeter or two on eachside by a very simple and convenient operation. Reference is to behad'to the accompanying drawing wherein a specific embod ment of myinvention is illustrated. Figure'l is an end viewqof my assembled. I

Fig. 2 is a detail plan view show ng the flexible, adjustable guard. I I

Fig. 3 is a detail plan view of the slotted back plate.

Fig. 4 is a in assembled condition. The device comprises a screws on toa front plate 2. The razor blade 3 is positioned between the front plate2 and a flexible guard 4, andv on the-other side of the guard 4 there isplaced the back device when handle 1 which plate 5. This plate 5 is'providedwith slots hieh and 9 through w on the front plate 2 this backplate 5 in (land perforations 7, 8 the studs not shown) position. Theflexible guard have invented -cerfore prevented.

. so that the handlel may plate, a flexible guard, a

I 4 consists of the serrated side members 10 and transverse members 11which are substantially parallel with each other and are preferablyintegral with the side members 1O.

These members 11 are provided substantially at the center withprojections 12 and when the razor is in assembled condition these bowedtransverse members 11 are positioned in the slots'6 of the back plate 5,and longitudinal movement of the guard 4 is there- The projections. 12extend beyond the slots 6 and are adapted to be engaged by a milled nutor screw sleeve 13.

It will be seen that by bearing upon the projections 12 the to flattenthereby, outwardly moving the serrated side members 10 in a directionsubstantially perpendicular to the cutting edge of the blade, and whenpressure upon the projections 12 is removed the side members 10 willcome together. The milled nut 13 therefore affords a convenient meansfor the guard and widening and contracting thereby regulating theprotection afforded the guard,

' It will befurther seen that this movement of the guard 4 by the nut 13is entirely independent of the rest of the device and does not result inmovement of other parts of the razor. The blade 3. front plate 2 andback plate 5-are clamped and held in lace by screwing plate 2. The blade3 is neither'tightened-nor loosened by the movement of the guard by isdesirable to have the sleeve nut 13 It the bowedthe handle 1 onto the.ront' flexible guard 4. Will tend the central stud on the front plate 2threaded be screwed upon it.v

Itis tobe understood that my is not limited to the specific details setforth in theiforegoin'g arrangement and construc- 1 tion andsincenumerous. modifications may be effected without departing from thespirit and scope of my invention I desire that only bottom plan view ofmy device front plate and said guard, said guard being disposed betweensaid blade and said back plate, means for clamping said blade "and guardbetween the front and back plates and means independent of said clampingmeans and comprising a friction nut thread blade between said inventionI ed upon the handle of said razor for sliding said guard in a directionsubstantially per? pendicular to the cutting edge of said blade.

2 In a safety razor, a front plate, a back plate, a flexible guard, ablade between said front plate and said guard, said guard being disposedbetween said blade and said back plate, means for clamping said bladeand guard bet-ween the front and back plates and means independent ofsaid clamping means for sliding said guard in a direction substantiallyperpendicular to the cutting edge of said, blade.

3. In a'safety razor, a front plate, a back plate, a flexible guard, ablade between said front plate and said guard, said guard being disposedbetween said blade and said back plate, means for holding said bladesubstantially fixed relative to the front and back plates, means ,forclamping said blade and guard between the front and back plates andmeans independent of said clamping means for sliding said guard in adirection substantially 'perpendicular to the cutting edge of saidblade. 4. In a safety r'azor, a front plate, a back plate, a flexibleguard, a blade,-a handle provided with a single means forclamping saidblade, guard and front and back plates and means comprising a frictionnut upon said handle for sliding saidguard in a direction' substantiallyperpendicular to the cutting edge of said blade. 5. In a razor, aflexible element constituting a safety guard for the cutting edges ofsaid razor and comprising serrated side members joined by bowed,transverse members, a handle and a threaded member upon said handleadapted to-engage said bowed members and means for guiding the movementof said, side members in a direction substantially perpendicular to-thecutting edges of said razor when said threaded member acts upon salclbowed, transverse members.

prising serrated side members, transverse members oining said sidemembers, said transverse members being bowed and having 7. In a safetyrazor, a flexible guard con'sprising a handle of said razor the movementof sald side members in a disubstantially central 6. In a safety razor,a flexible guard compair of serrated side members, a pair ofsubstantially parallel transverse members joining said side membersysaidtransverse members being bowed and engaging with a friction nut threadedupon the and means for guiding rectlon substantially perpendicular to'the cutting edges of the blade of the razor when In a safety razor, afront plate, a slotted backplate, a flexible guard comprising serratedside members and transverse members joining said side members, a bladebetween said front plate and said guard, said guard being disposedbetween said blade 7 said transverse members being bowed and passingthrough the slots in said back plate.

In a safety slotted back plate, a. flexible guard comprising a pair ofserrated side members and a pair .of substantially parallel transversemembers integral with and joining said side members, a blade and saidguard, said guard being disposed between said blade and said back plateand said transverse members being bowed, passing through theslots in Venga ing a movable threaded member on the hand e of the razor.

v 10. In a; safety razor, a front plate, a slotted back plate, aflexible guard comprising-a pair of serrated side members and a pair ofsubstantially parallel transverse members integral with and joining saidside members, a blade between said front plate and saidguard, said guardbeing disposed and said back plate and said friction nut acts upon saidbowed, transverse members.

razor, a front plate, a I

between said front plate said back plate and between said blade and saidback plate, said transverse members being bowed, having projections andpassing through the slots in said handle provided withmeans for clampingsaid blade and back'plates and means comprising a friction nut threadedupon said handle for engaging back plate, a

guard between the front and the transverse members upon said guard andsliding the serrated side members substantially perpendicular to thecutting edge of the blade. a a

In testimony whereof I aflix my si nature. ARTHUR

